package com.litchishell.easy;

/**
 * @author LitchiShell
 * @description: 路径总和
 * @create 2022-09-08
 */
public class Solution026 {
    public boolean hasPathSum(TreeNode root, int targetSum) {
        if (root == null) {
            return false;
        }
        if (root.left == null && root.right == null) {
            return targetSum == root.val;
        }
        return hasPathSum(root.left, targetSum - root.val) || hasPathSum(root.right, targetSum - root.val);
    }
}
